O.S. Engines Cylinder & Piston Speed 21XZ-GT OSM2AS03000

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Price: $159.99

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This is the cylinder and piston for the O.S. Engines Speed 21XZ-GT Racing Engine.


  • Newly developed cylinder liner with five scavenger ports and three exhaust ports
  • Restores proper compression to worn engine

Includes: Cylinder liner and piston

This product was added to our catalog on April 19, 2017